孙女在英语中被称作"granddaughter"。这个词来源于古英语"grand"和古英语"dohtor"，它们分别有"大"和"女儿"的意思。例如：

My granddaughter is coming to visit me this weekend.

I'm so proud of my granddaughter. She just graduated from college.

My granddaughter is such a talented artist. She always draws the most beautiful pictures.

"Granddaughter"这个词的同义词是"grandchild"，它可以指任何性别的孙子或孙女。例如：

My grandchild is always so full of energy.

I love spending time with my grandchild. They always make me laugh.

My grandchild is so smart. They're always asking questions and learning new things.